Research graph
References from Ammonium as a biomarker in Precambrian metasediments. Local targets link to admitted publications; unresolved targets remain external evidence.
Nitrogen isotope ratios of kerogens in Precambrian cherts: a record of the evolution of atmospheric chemistry?
10.1016/s0301-9268(99)00005-4 · 1999 · External reference
Nitrogen isotope compositions of metasedimentary rocks in the Catalina Schist, California: implications for metamorphic devolatilisation history
10.1016/0016-7037(92)90363-n · 1992 · External reference
Nitrogen-isotope record of fluid-rock interaction in the Skiddaw Aureole and granite English Lake District
10.2138/am-1999-1002 · 1999 · External reference
A new model for atmospheric oxygen over Phanerozoic time
10.2475/ajs.289.4.333 · 1989 · External reference
Isotope fractionation and atmospheric oxygen: implications for Phanerozoic O2 evolution
10.1126/science.287.5458.1630 · 2000 · External reference
Unresolved reference
1980 · External reference
Determination of the ammonium content of potassic rocks and minerals by capacitance manometry: a prelude to the calibration of FTIR microscopes
10.1016/s0009-2541(96)00150-7 · 1997 · External reference
10.1016/s0009-2541(00)00405-8
10.1016/s0009-2541(00)00405-8 · External reference
Precambrian ammonium biogeochemistry: a study of the Moine metasediments
10.1016/s0009-2541(97)00135-6 · 1998 · External reference
Rubidium sulphate-ammonium sulphate solid solution: a standard for use during the determination of the abundance and isotopic composition of nitrogen at the ppm level by static vacuum mass spectrometry
10.1021/ac00013a029 · 1991 · External reference
The measurement of δ15N in crustal rocks by static vacuum mass spectrometry: application to the origin of the ammonium in the Cornubian batholith, southwest England
10.1016/0016-7037(93)90070-d · 1993 · External reference
Isotopic fractionation of dissolved nitrate during denitrification in the eastern tropical North Pacific Ocean
10.1016/0304-4203(75)90009-2 · 1975 · External reference
Ammonium micas in metamorphic rocks as exemplified by Dôme de l'Agout (France)
10.2475/ajs.286.9.702 · 1986 · External reference
U-Pb zircon chronological evidence for Neoproterozoic events in the Glenfinnan Group (Moine Supergroup) the formation of the Ardgour granite gneiss, north-west Scotland
10.1007/s004100050297 · 1997 · External reference
Isotopic variations of the fixed nitrogen in metamorphic rocks
10.1016/0016-7037(86)90351-0 · 1986 · External reference
Ammonium in spilitized basalts of Southwest England and its implications for the recycling of nitrogen
10.2343/geochemj.23.19 · 1989 · External reference
Ammonium in granites and its petrogenetic significance
10.1016/s0012-8252(99)00006-9 · 1999 · External reference
Ammonium in zeolitized tuffs of the Karlovassi basin, Samos
1992 · External reference
Precambrian organic geochemistry, preservation of the record
1983 · External reference
Early proterozoic atmospheric change
1994 · External reference
High ammonium contents in the 3800 Ma Isua supracrustal rocks, central West Greenland
10.1016/0016-7037(96)00083-x · 1996 · External reference
Distribution of ammonium in minerals of metamorphic and granitic rocks
10.1016/0016-7037(81)90122-8 · 1981 · External reference
Stable isotope studies of soil nitrogen
1998 · External reference
Ammonium contents of biotite from Precambrian rocks in Finland: the significance of NH4+ as a possible chemical fossil
10.1016/0016-7037(85)90198-x · 1985 · External reference
The nitrogen cycle
1992 · External reference
10.1016/0009-2541(86)90093-8
10.1016/0009-2541(86)90093-8 · External reference
Earth's early atmosphere
10.1126/science.11536547 · 1993 · External reference
N2–CH4–CO2 fluids during formation of the Dôme de l'Agout, France
10.1016/0016-7037(82)90246-0 · 1982 · External reference
Nitrogen-15 in the natural environment
1980 · External reference
Isotopic fractionation of nitrogen and carbon in the synthesis of amino acids by microorganisms
10.1016/0168-9622(87)90064-9 · 1987 · External reference
Unresolved reference
1998 · External reference
Unresolved reference
1997 · External reference
Atmospheric nitrogen is a reliable standard for natural 15N abundance measurements
10.1038/303685a0 · 1983 · External reference
Natural isotopic composition of nitrogen as a tracer of origin for suspended organic matter in the Scheldt estuary
10.1016/0016-7037(84)90283-7 · 1984 · External reference
Experimental determination of nitrogen kinetic isotope fractionation: some principles: illustration for the denitrification and nitrification processes
10.1007/bf02374138 · 1981 · External reference
Carbon isotopes in the mantle
1986 · External reference
Search for past life on Mars. Possible relic biogenic activity in martian meteorite ALH84001
10.1126/science.273.5277.924 · 1996 · External reference
Evidence of life on Earth before 3800 million years ago
10.1038/384055a0 · 1996 · External reference
10.2973/odp.proc.sr.117.163.1991
10.2973/odp.proc.sr.117.163.1991 · External reference
Non-biogenic graphite in the 3.8-Ga metamorphic rocks from the Isua district, Greenland
10.1016/s0009-2541(96)00076-9 · 1996 · External reference
Temporal trends in nitrogen isotope values of nitrate leaching from an agricultural soil
10.1016/s0009-2541(98)00012-6 · 1998 · External reference
Unresolved reference
1993 · External reference
Unresolved reference
1995 · External reference
Correlation of carbon and nitrogen stable isotope ratios in sedimentary organic matter
10.4319/lo.1978.23.4.0598 · 1978 · External reference
Isotopic analyses of nitrogenous compounds from the Murchison meteorite: ammonia, amines, amino acids, and polar hydrocarbons
10.1016/0016-7037(94)90251-8 · 1994 · External reference
15N/14N variations in Cretaceous Atlantic sedimentary sequences: implication for past changes in marine nitrogen biochemistry
10.1016/0012-821x(87)90201-9 · 1987 · External reference
10.1016/s0016-7037(00)00393-8
10.1016/s0016-7037(00)00393-8 · External reference
A 3800-million-year isotopic record of life from carbon in sedimentary rocks
10.1038/333313a0 · 1988 · External reference
Isotopic inferences of ancient biochemistries: carbon, sulphur, hydrogen and nitrogen
1983 · External reference
Unresolved reference
1983 · External reference
Microfossils of the early Archean Apex chert: new evidence for the antiquity of life
10.1126/science.260.5108.640 · 1993 · External reference
Unresolved reference
1992 · External reference
Summary and implications of reported amino acid concentrations in the Murchison meteorite
10.1016/0016-7037(90)90131-4 · 1990 · External reference
The possibility of determining the ammonium content of mica by IR spectroscopy
1982 · External reference
Unresolved reference
1987 · External reference
Unresolved reference
1990 · External reference
Oceanic nitrogen isotopes and their uses in determining the source of sedimentary nitrogen
1978 · External reference
Ammonium in muscovite
10.1016/0016-7037(65)90019-0 · 1965 · External reference
Carbon and nitrogen diagenesis in deep sea sediments
10.1016/0016-7037(80)90111-8 · 1980 · External reference
Unresolved reference
1996 · External reference
Diagenesis of ammonium during hydrocarbon maturation and migration, Wilcox Group, Louisiana
10.1016/0883-2927(92)90031-w · 1992 · External reference
Nitrogen isotope geochemistry of organic matter and minerals during diagenesis and hydrocarbon migration
10.1016/0016-7037(95)00005-k · 1995 · External reference
Organic materials in a martian meteorite
10.1038/340220a0 · 1989 · External reference
